The main reason for this is that we need to include information about
a buffer's UndoMap into its protobuf representation. But it's a bit
complex to correctly incorporate this information into the current
protobuf representation.
If we want to continue reusing `Buffer::apply_remote_edit` for
incorporating the historical operations, we need to either make
that method capable of incorporating already-undone edits, or
serialize the UndoMap into undo *operations*, so that we can apply
these undo operations after the fact when deserializing. But this is
not trivial, because an UndoOperation requires information about
the full offset ranges that were undone.
This will make it possible for us to render their avatars. Previously we only had the user ids. During rendering, everything needs to be available synchronously. So now, whenever collaborators are added, we perform the async I/O to fetch their user data prior to adding them to the worktree.
Again, this is about reserving the concept of a "collaborator" for actual collaborators on a worktree.
Co-Authored-By: Antonio Scandurra <me@as-cii.com>
This will allow us to use the word "collaborator" to describe users that are actively collaborating on a worktree.
Co-Authored-By: Antonio Scandurra <me@as-cii.com>
